Fakes in the making

Picking up on a suggestion from from one of our podcast listeners, I’ll be producing one convincing piece of evidence for something I don’t believe in every month. It’ll usually involve either a photograph, a video, or a piece of manipulated audio, or perhaps a mix of these.
I’ve got a few ideas to get started with. I’ve always wanted to fake a UFO video, so I’ll start there. If anyone knows of a piece of video or photography that’s been put forward as proof of something bogus, I’d like to have a go at figuring out how it was made, and perhaps re-creating the effect. If anyone has any fun ideas for fakery, please let me know in the comments.